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I haven't done much to my E30 since fall and now it doesn't run. There is no fuel or spark. I jumped the fuel pump relay and I have fuel pressure. The car is an 86 with the sensors on the bellhousing. I swapped out the two sensors and nothing has changed. Before I delve into the car and its problem, does anyone have any quick ideas? What seems most important is that BOTH spark and fuel pressure are affected. One day the car ran, the next day it didn't......

The fuel pump is okay, I have pressure when I jump the relay. I have changed the crank position sensor. I will search and find the main relay and fuseable link. Can I assume that the main relay is controlled by the key? Where in the circuitry is the fuseable link? I ask because I do have power to the fuse panel.

I am away from home and won't get back to the car until this week-end. It would be nice to have the 325 serviceable once again!

It will most likely be your crank position sensor. I would start by checking the resistance on that sensor(supposed to be around 550ohms I believe). The symptoms are the same. It cuts fuel and spark at the same time. If you were to check your injectors for a pulse from the DME and it was absent, that would for sure tell you it is in fact the CPS.

Let's not forget that the sensors on the bell housing look for the little magnet on the flywheel. If that's missing it won't run.

But yeah, check the fusible link in the trunk, one quick way to do that is check for volts on the small lead that comes off the battery, disconnect it from the terminal under the hood on the passenger side firewall... then test to ground.